12040306 has 8 divisors (see below), whose sum is σ = 18501084. Its totient is φ = 5873280.

The previous prime is 12040291. The next prime is 12040309. The reversal of 12040306 is 60304021.

It can be written as a sum of positive squares in 2 ways, for example, as 11964681 + 75625 = 3459^2 + 275^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12040306.

It is not an unprimeable number, because it can be changed into a prime (12040309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73335 + ... + 73498.

Almost surely, 2^12040306 is an apocalyptic number.

12040306 is a deficient number, since it is larger than the sum of its proper divisors (6460778).

12040306 is a wasteful number, since it uses less digits than its factorization.

12040306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146876.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 12040306 is about 3469.9144081663. The cubic root of 12040306 is about 229.1988890155.

Adding to 12040306 its reverse (60304021), we get a palindrome (72344327).

The spelling of 12040306 in words is "twelve million, forty thousand, three hundred six".